CN2524009Y - Self-lock device of gear and rack mechanism - Google Patents
Self-lock device of gear and rack mechanism Download PDFInfo
- Publication number
- CN2524009Y CN2524009Y CN 02218634 CN02218634U CN2524009Y CN 2524009 Y CN2524009 Y CN 2524009Y CN 02218634 CN02218634 CN 02218634 CN 02218634 U CN02218634 U CN 02218634U CN 2524009 Y CN2524009 Y CN 2524009Y
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- CN
- China
- Prior art keywords
- gear
- self
- rack
- pinion
- pawl
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a self-lock device of gear and rack mechanism and consists of a friction plate, a central axle, a transmission gear, a ratchet with teeth, a claw gear, a left and right fork, a pullback spring and a hand lever. The utility model can carry out vertical self-lock and can bear loaded self-lock, which greatly expanded the applicable range of the gear and rack. The utility model is a significant improvement on the gear rack mechanism.
Description
The utility model relates to a kind of pinion and rack, especially a kind of self-locking device of pinion and rack.
At present, common pinion and rack all can not self-locking, and especially the occasion in vertical motion and load is difficult to realize self-locking especially, and the application area that this has limited gear rack has to a great extent had a strong impact on design and application on some mechanical structures.
This practical purpose provides a kind of self-locking device of pinion and rack, it not only can realize self-locking in the motion of Vertical direction, and can under the situation of load, realize self-locking, and the application area that this has enlarged gear rack greatly, the design that has enlarged on some mechanical structures is used.
The purpose of this utility model is achieved in that this device has a grinding disk (15), grinding disk (15) is fixedly connected as a whole with driving gear (7), it and a hand left side, right shift fork (10), (11) together install with central shaft (8) sliding fit, driving gear (7) and rack pinion (1) engagement driving, rack pinion (1) and tooth bar (2) engagement driving, central shaft (8) is fixedly mounted on the frame (16), ratchet gear (6), (13) with central shaft (8) fixed installation, a left side, right band tooth papillae pawl (14), (5) on the inner face that is fixed on grinding disk (15) by band tooth pawl axis (3) sliding fit, about the band tooth papillae pawl (14), (5) each fixes a tension spring shaft (9) lower end, and it colludes the two ends that tangle extension spring (12).
Owing to adopted such scheme can make this device reach the function of self-locking, and can the load self-locking.
The utility model is described in further detail below in conjunction with drawings and Examples:
Accompanying drawing is a structure principle chart of the present utility model.
Among the figure, 1 rack pinion, 2 tooth bars, 3 pawl axis, 4 hand crust, 5 right band tooth papillae pawls, 6 ratchet gears, 7 driving gears, 8 central shafts, 9 tension spring shafts, 10 right shift forks, 11 left shift forks, 12 extension springs, 13 ratchet gears, 14 left side band tooth papillae pawls, 15 friction wheels, 16 frames.
In the drawings, hand shift fork is one and falls y-shaped structure, there are two left and right shift forks (11), (10) in its one the first from left right side, below, left and right shift fork is as the both legs of a fork, its middle part is one can carry out sliding fit and fixing axis hole with central shaft (8), whole only turning can not be along central shaft (8) play, and its top is the rocking arm of a band handle (4).Left and right band tooth papillae pawl (14), (5), be one and can carry out movable toothed Spindle around pawl axis (3), the ratchet teeth can mesh with ratchet gear (6), (13) coupling, each fixes a tension spring shaft (9) its lower end, not only tightly mesh with ratchet gear (6), (13) band tooth papillae pawl (14), (5) about hanging up after the extension spring, and its sagging ratchet head also tightly withstand left and right shift fork (11), (10).
Working procedure of the present utility model is such: when needs rise, shake handgrip (4) counterclockwise, ratchet gear (13), (6) teeth and a left side, right shift fork (11), (10) band tooth papillae pawl (14) about the promotion, (5) open, be close to friction wheel (15), driving friction wheel (15) by friction rotates, driving driving gear (7) simultaneously rotates, impel clockwise and tooth bar (2) the engagement rotation of rack pinion (1), rise overally thereby make, when manually stopping, because the pulling force of extension spring, band tooth papillae pawl (14) about making, (5) shrink, with ratchet gear (6), (13) teeth are held engagement tightly, and withstand a left side, right shift fork (11), (10), because ratchet gear (6), (13) be to fixedly connected, so also just a left side with central shaft (8) and frame (16), right band tooth papillae pawl (14), (15) firmly fixing.
Claims (3)
1, a kind of self-locking device of pinion and rack, it is characterized in that: this device has a grinding disk (15), grinding disk (15) is fixedly connected as a whole with driving gear (7), it and a hand left side, right shift fork (10), (11) together install with central shaft (8) sliding fit, driving gear (7) and rack pinion (1) engagement driving, rack pinion (1) and tooth bar (2) engagement driving, central shaft (8) is fixedly mounted on the frame (16), ratchet gear (6), (13) with central shaft (8) fixed installation, a left side, right band tooth papillae pawl (14), (5) on the inner face that is fixed on grinding disk (15) by band tooth pawl axis (3) sliding fit, about the band tooth papillae pawl (14), (5) each fixes a tension spring shaft (9) lower end, and it colludes the two ends that tangle extension spring (12).
2, the self-locking device of a kind of pinion and rack according to claim 1, it is characterized in that: hand shift fork is one and falls y-shaped structure, there are two left and right shift forks (11), (10) in its one the first from left right side, below, the both legs of a fork of picture, its middle part is one can carry out sliding fit and fixing axis hole with central shaft (8), whole only turning can not be along the central shaft play, and its top is the rocking arm of a band handle (3).
3, the self-locking device of a kind of pinion and rack according to claim 1, it is characterized in that: left and right band tooth papillae pawl (14), (5), be one and can carry out movable toothed Spindle around pawl axis (3), the ratchet teeth can mesh with ratchet gear (6), (13) coupling, each fixes a tension spring shaft (9) its lower end, tightly mesh with ratchet gear (6), (13) band tooth papillae pawl (14), (5) about hanging up after the extension spring, its sagging ratchet head tightly withstand left and right shift fork (11), (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218634 CN2524009Y (en) | 2002-01-26 | 2002-01-26 | Self-lock device of gear and rack mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218634 CN2524009Y (en) | 2002-01-26 | 2002-01-26 | Self-lock device of gear and rack mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2524009Y true CN2524009Y (en) | 2002-12-04 |
Family
ID=33697248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02218634 Expired - Fee Related CN2524009Y (en) | 2002-01-26 | 2002-01-26 | Self-lock device of gear and rack mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2524009Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202136A (en) * | 2015-09-24 | 2015-12-30 | 济南大学 | Novel transmission locking device |
| CN108223730A (en) * | 2016-12-10 | 2018-06-29 | 枣庄福德通用机械有限公司 | The worm gear locking device of big yield electrolytic descaling tank |
-
2002
- 2002-01-26 CN CN 02218634 patent/CN2524009Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202136A (en) * | 2015-09-24 | 2015-12-30 | 济南大学 | Novel transmission locking device |
| CN105202136B (en) * | 2015-09-24 | 2018-12-04 | 济南大学 | Novel transmission locking device |
| CN108223730A (en) * | 2016-12-10 | 2018-06-29 | 枣庄福德通用机械有限公司 | The worm gear locking device of big yield electrolytic descaling tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |